Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation HER107G A0G

Name: HER107G A0G
Brand: Taiwan Semiconductor Corporation
SKU: HER107G A0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: HER107G A0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: HER107G A0G.pdf

Description:: DIODE GEN PURP 800V 1A DO204AL

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,888

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

HER107G A0G from Taiwan Semiconductor is a high-efficiency, glass-passivated silicon rectifier diode rated for 800 V repetitive peak reverse voltage (V_RRM) and 1 A average forward current (I_F), with low 1.7 V forward voltage at 1 A and 75 ns reverse recovery time - used in DC-DC converters and freewheeling paths in switching power supplies.

For engineers reviewing the HER107G A0G datasheet, HER107G A0G pinout, HER107G A0G application, or HER107G A0G equivalent, key selection factors include its DO-204AL (DO-41) package, 30 A surge capability, 150 °C max junction temperature, RoHS/halogen-free compliance, and AEC-Q101 qualification availability (though HER107G A0G itself is non-AEC variant).

Technical Context

This single-die, axial-leaded rectifier uses a glass-passivated PN junction to achieve high reliability and low leakage (≤5 µA @ 25 °C, ≤150 µA @ 125 °C) under rated reverse voltage. Its 10 pF junction capacitance at 1 MHz and 4.0 V bias supports high-frequency switching operation.

The device operates across –55 °C to +150 °C junction temperature range, with thermal resistance of 60 °C/W (junction-to-ambient) and 15 °C/W (junction-to-case), enabling stable performance in compact, convection-cooled power stages without forced airflow.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - supports input rectification in 400 V AC line-derived SMPS or 600 V bus clamp circuits
I_F	1 A continuous - suitable for output rectification in sub-15 W isolated flyback or buck-derived converters
V_F	1.7 V @ 1 A, 25 °C - reduces conduction loss by ~15% vs. standard 1N4007 (1.9–2.1 V) at same current
t_rr	75 ns - enables use in 100–500 kHz switching topologies without excessive switching loss or EMI
I_FSM	30 A (8.3 ms half-sine) - withstands inrush and transient surges common in offline AC/DC front-ends
Junction temp	–55 °C to +150 °C - allows deployment in automotive under-hood or industrial ambient environments
C_J	10 pF @ 1 MHz, 4 V - minimizes capacitive coupling noise in high-dv/dt gate-drive or snubber circuits

Pinout & Package

Package: DO-204AL (DO-41), axial leaded, epoxy-molded case meeting UL 94V-0; cathode indicated by band; pure tin-plated leads compliant with J-STD-002 solderability.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unbanded end)	Forward current entry point	Connected to lower-potential side (e.g., transformer secondary center-tap or switch node return)
Cathode (banded end)	Forward current exit / reverse blocking terminal	Connected to output rail or energy storage capacitor positive; blocks up to 800 V reverse polarity

Key Features

Feature	Design Value
Glass-passivated junction	Prevents moisture ingress and metallization corrosion, extending lifetime in humid or thermally cycled environments
Low V_F (1.7 V)	Reduces power dissipation by ~0.2 W vs. legacy 1N5408 at 1 A, lowering heatsink requirements
High I_FSM (30 A)	Eliminates need for external surge-limiting resistors during cold-start or short-circuit recovery
RoHS & halogen-free	Meets IEC 61249-2-21 and global environmental compliance mandates for consumer and industrial products
DO-41 mechanical robustness	Withstands >5 kgf axial pull force and meets JESD201 Class 2 whisker resistance for long-term solder joint integrity

Applications

DC-DC Converter Output Rectification	Switching Mode Inverter Freewheeling
Use Scenario: Secondary-side rectification in isolated 5–12 V, 1 A flyback or forward converter powering microcontrollers or sensors. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 1.7 V V_F and 75 ns t_rr minimize conduction and switching losses, improving efficiency by ≥1.2% over standard rectifiers at 250 kHz.	Use Scenario: Freewheeling path across inductive loads (e.g., relay coils, solenoids, motor windings) in 24–48 V industrial inverters. IC Role / Device Role / Timing Role: Provides low-loss recirculation path during MOSFET turn-off, clamping inductive kickback voltage. Use Value: 800 V V_RRM safely handles transients up to 600 V bus spikes; 30 A I_FSM absorbs repeated inductive energy dumps without degradation.
AC Input Bridge Leg (Half-Wave)	EMI Filter Common-Mode Choke Clamp
Use Scenario: Half-wave rectification stage in low-cost, low-power AC/DC adapters (<10 W) with universal 85–265 V AC input. IC Role / Device Role / Timing Role: Conducts only during positive half-cycle; blocks negative half-cycle to prevent reverse conduction. Use Value: Glass passivation ensures stable leakage (<5 µA) across wide temperature range, preventing false triggering in high-impedance feedback networks.	Use Scenario: Clamp diode across common-mode choke windings in Class B EMI filters for medical or industrial power supplies. IC Role / Device Role / Timing Role: Limits differential-mode voltage overshoot during fast-switching transients to protect downstream Y-capacitors and ICs. Use Value: 10 pF C_J avoids resonant peaking with choke inductance; 150 °C T_JMAX sustains clamping duty in thermally constrained filter housings.

DC-DC Converter Output Rectification

Switching Mode Inverter Freewheeling

Use Scenario: Secondary-side rectification in isolated 5–12 V, 1 A flyback or forward converter powering microcontrollers or sensors.

IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output.

Use Value: 1.7 V V_F and 75 ns t_rr minimize conduction and switching losses, improving efficiency by ≥1.2% over standard rectifiers at 250 kHz.

Use Scenario: Freewheeling path across inductive loads (e.g., relay coils, solenoids, motor windings) in 24–48 V industrial inverters.

IC Role / Device Role / Timing Role: Provides low-loss recirculation path during MOSFET turn-off, clamping inductive kickback voltage.

Use Value: 800 V V_RRM safely handles transients up to 600 V bus spikes; 30 A I_FSM absorbs repeated inductive energy dumps without degradation.

AC Input Bridge Leg (Half-Wave)

EMI Filter Common-Mode Choke Clamp

Use Scenario: Half-wave rectification stage in low-cost, low-power AC/DC adapters (<10 W) with universal 85–265 V AC input.

IC Role / Device Role / Timing Role: Conducts only during positive half-cycle; blocks negative half-cycle to prevent reverse conduction.

Use Value: Glass passivation ensures stable leakage (<5 µA) across wide temperature range, preventing false triggering in high-impedance feedback networks.

Use Scenario: Clamp diode across common-mode choke windings in Class B EMI filters for medical or industrial power supplies.

IC Role / Device Role / Timing Role: Limits differential-mode voltage overshoot during fast-switching transients to protect downstream Y-capacitors and ICs.

Use Value: 10 pF C_J avoids resonant peaking with choke inductance; 150 °C T_JMAX sustains clamping duty in thermally constrained filter housings.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-efficiency rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R08	Same DO-41 package, 800 V V_RRM, but 1.25 V V_F @ 1 A and 55 ns t_rr; higher cost, tighter V_F tolerance	Better suited for high-frequency (>300 kHz), low-loss critical designs where 0.45 V lower V_F justifies premium	Select STTH1R08 when optimizing for minimum conduction loss and fastest recovery in space-constrained PCB layouts
1N5627	Legacy DO-41 rectifier, 800 V V_RRM, but 2.0 V V_F @ 1 A and 200 ns t_rr; no halogen-free or RoHS claim in latest datasheet	Acceptable only in cost-sensitive, low-frequency (<50 kHz), non-compliant legacy systems	Choose 1N5627 only if regulatory compliance and thermal performance are not design constraints

Compared with STTH1R08 and 1N5627, HER107G A0G delivers balanced performance: lower V_F than 1N5627 and better cost-efficiency than STTH1R08, while maintaining full RoHS/halogen-free compliance and validated 150 °C operation.

Availability

HER107G A0G is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching mode inverter freewheeling, and AC input half-wave rectification requiring stable component supply, consistent DO-41 form factor, and long-term industrial lifecycle support.

Supply support for HER107G A0G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.

The HER101G–HER108G family was designed specifically for high-reliability, medium-power rectification in switching power supplies - emphasizing low V_F, fast t_rr, and robust thermal performance in standard through-hole packages.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for HER107G A0G?

The HER107G A0G has a specified V_RRM of 800 V, confirmed in the absolute maximum ratings table of Taiwan Semiconductor's L2104 datasheet. This rating defines the highest instantaneous reverse voltage the device can block repeatedly without breakdown, making it suitable for 400 V AC line-derived applications or 600 V bus-clamp circuits. Derating per ambient temperature applies above 25 °C.

Is HER107G A0G RoHS and halogen-free compliant?

Yes, HER107G A0G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the official datasheet. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. This compliance is verified for the DO-204AL (DO-41) package variant supplied in ammo box packaging (A0G suffix).

What is the forward voltage (V_F) of HER107G A0G at 1 A and 25 °C?

The forward voltage of HER107G A0G is 1.7 V at I_F = 1 A and T_J = 25 °C, per the ELECTRICAL SPECIFICATIONS table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At elevated junction temperatures (e.g., 100 °C), V_F decreases slightly due to semiconductor physics, typically by ~1.5 mV/°C.

Does HER107G A0G have AEC-Q101 qualification?

No, HER107G A0G is not AEC-Q101 qualified. The AEC-Q101 option is available only in variants marked with an "H" suffix (e.g., HER107GH). The "A0G" suffix denotes ammo box packaging and green compound, but does not imply automotive qualification. For automotive applications requiring AEC-Q101, specify HER107GH instead of HER107G A0G.

What is the reverse recovery time (t_rr) of HER107G A0G and how is it tested?

The reverse recovery time of HER107G A0G is 75 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, per the datasheet's ELECTRICAL SPECIFICATIONS table. Test methodology follows JEDEC standard JESD28-C, using a defined test circuit (shown in Fig.6) with controlled di/dt and voltage slew rate to ensure repeatable measurement of minority-carrier recombination delay.

HER107G A0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Tape & Box (TB)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 800 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.7 V @ 1 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 75 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 800 V

Capacitance @ Vr, F:: 10pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

Operating Temperature - Junction:: -55°C ~ 150°C

HER107G A0G FAQ

1.How can I place an order for HER107G A0G through Aetrix?

Please submit a Request for Quotation (RFQ) for HER107G A0G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for HER107G A0G reliable?

The price and inventory of HER107G A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER107G A0G is usually 5 days.

3.What payment methods are accepted for HER107G A0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER107G A0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HER107G A0G?

HER107G A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HER107G A0G order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for HER107G A0G?

For technical support, including HER107G A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER107G A0G requirements.

6.How does Aetrix verify that HER107G A0G is sourced from the original manufacturer or authorized distributors?

All HER107G A0G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HER107G A0G meets industry standards.

7.What is the process for return or replacement of HER107G A0G?

All HER107G A0G units undergo pre-shipment inspection (PSI). If there is an issue with HER107G A0G, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The HER107G A0G part is unused and in its original packaging.

Return procedure for HER107G A0G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…